DE1996760U - LIGHT ANCHORS FOR MAGNETIC GENERATORS, IN PARTICULAR FOR FLYING LIGHT MAGNETIC GENERATORS FOR OPERATING COMBUSTION MACHINES. - Google Patents

Description

Tt. 9102 Ws / Ep
March 4th, 1968

P.A. 138 212 "-8.3.68

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Appendix 'j

"i

for registered design registration J

R 0 BE RT BO SCH GMBH, Stuttgart V /, Breitscheidsfcrasse "

Light armatures for magnetic generators, in particular for flywheel magnetos for operating internal combustion engines

The innovation relates to a light armature for magnetic generators, in particular for flywheel magneto igniters for operating internal combustion engines with a bobbin made of insulating material for wire windings, one end of which is connected to a Connection cable is contacted.

Robert Bosch GmbH R. 9102 Ws / * p

Stuttgart

DGi magnetic generators will often use the light windings one end attached to the armature core and thus connected to ground, while the other end to a light switch or consumers leading copper braid is connected. The contact between the end of the winding and the copper wire is usually done by, a connector designed as a sleeve-shaped compression connector by inserting the two wire ends and clamping the sleeve in it by squeezing it ^ The connector itself, however, must be determined, otherwise there is a risk • that the wire end of the light winding, which is sensitive to die vibrations, breaks off directly at the connector, especially when using coated aluminum wire.

The object of the innovation is to fix the connector in such a way that no vibrations occur at the wire ends and that they are also largely relieved of tensile stresses.

This is achieved according to the innovation by a coil carrier that is provided with a molding chamber · for receiving the connector. Difci l'Ormkammer is preferably on one side of the bobbin molded on and forms a trough, the base of which is provided with an opening through which the connecting conductor can pass.

In the drawing, two exemplary embodiments of the subject of the innovation are shown. It shows:

Fig. 1 the light armature of a generator, the coil carrier has a molding chamber on one side, which is provided with a shallow depression,

2 shows the same light anchor rotated by 90 °; in

Fig. 5 shows another light armature, the coil carrier is provided with a Fonnkammer, which is a deep Trough forms,

Robert Bosch GmbH A. 9102 Ws / Ep

Stuttgart

Flg. 4 shows the light anchor in cross section along the line IV-IV in Fig. 3.

In FIGS. 1 and 2, the light armature of a magnetic generator is denoted by 10. Kr consists of a laminated iron core 11 and a coil carrier 12 with a light winding 12 made of lacquered aluminum wire. The coil carrier 12 is produced by overmolding the central section of the inner core 11 with a thermoplastic material which at the same time holds the laminated metal sheets of the iron core 11 together. The wire end IJa of the light winding 13 is provided with a crimp cable lug 14 which is attached as a ground connection to the Elsenkern 11 when the light armature 10 is installed. The wire end 13b of the Lichtwluklung 13 is by a crimp 16 j l'contacted from a copper wire 17 with an end of an optical cable. To fix the crimp connector 15 and its wire ends, a molding chamber 18 is molded onto the coil carrier 12 on one side. She takes the crimp connector 15 with the. wire ends clamped therein in a trough 19. The cable connector 15 and with it the end 13b of the light winding 13 * sc as well as the end of the light cable 16 is fixed in the trough 19 by pulling the cable 16 through an opening 20 ± i of the trough 19 so far that the crimp connector 15 lies flat in the trough 19 and is clamped between two elastic ribs 21 protruding into the trough 19. The wire end 13b of the light winding 13 is slightly tensioned. To avoid corrosion at the end of the aluminum wire 13b and to further secure the crimp connector 15 and the wire ends, the trough 19 of the molding chamber 18 is filled with a thick insulating varnish or casting resin 22.

Figures 3 and 4 show a light anchor 30, in which a through partial encapsulation of the iron core 31 with a thermoplastic Coil carrier 32 made of plastic has a molding chamber 33 on one side with a trough 34 for receiving a compression connector 35 has. In this case, the molding chamber 33 is designed in such a way that dai3 the connector 35 perpendicular to the one with an opening 36

Uobert Bosch Otiibll R. 9102 Js / Ep

Stuttgart

for the implementation of a light cable 37 provided bottom of the trough y \ stands. In this embodiment, too, after being squeezed with the wire end of the light winding 38 and the end of the light cable 37, the connector gets into the hollow , in that the light cable 27 is pulled through the opening yS to the extent that the wire end of the light winding is pulled 38 is slightly cocked. The connector is largely protected against vibrations in the deep and narrow hollow 34. A complete pouring of the hollow ^ K with insulating or casting resin is not necessary, as it is sufficient if the connector 35 and the wire end of the light winding 38 to protect against corrosion by brushing covered with insulating varnish 39 and the connector 35 is thereby fixed in the trough ~ J> k at the same time. The other end of the wire of the light winding 38, which is fastened to the iron core 31 with a crimp cable lug 40 as a ground connection when the light armature 30 is installed, is also covered with insulating varnish 39 at the crimped point of the crimp lug 40.

Claims (7)

Expectations 1. Light anchors for magnetic generators, especially for magnetic igniters for the operation of internal combustion engines, with a coil carrier made of insulating material for wire windings, one of which The end is contacted by a connector with a connecting cable, characterized in that the coil carrier (12, 32) φ at least one mold chamber (18, 33) for receiving the connector (15, 35) is provided. 2. coil carrier according to claim 1, characterized in that the molding chamber (18, 33) on one side of the coil carrier (12, 32) is molded on and forms a trough (19, 34), the bottom of which is provided with an opening (20, 36) through which the connecting conductor (16, 37) can pass. 3. bobbin according to claim 1 and 2, characterized in that the connector (15, 35) received by the molding chamber (18, 33) and the wire end of the winding (13, 3b) squeezed with it an insulating varnish or casting resin (22, 39) are coated. 4. coil carrier according to one of claims 1-3, characterized in that that the trough (19) of the molding chamber (18) is filled with insulating varnish or casting resin (22) and the connector (15) in insulating varnish (22) is embedded. Robert Bosch GmbH Stuttgart R. 9102 Vi's / ip 5. bobbin according to one of claims 1 - k, characterized in that the connector (15) lies flat in the trough (I9) of the Formkatnmer (ΐδ). 6. coil carrier according to claim 5 j, characterized in that * \ ß of the long sides of the molding chamber (l8) opposite one another, elastic ribs (21) protrude into the trough (19), between which the connector (15) is clamped. 7. bobbin according to one of claims 1-4, characterized in that the connector (25) is perpendicular in the trough of the molding chamber (Jo) .